html, body, form {
    height: 100%;
    width: 100%;
    overflow-x: hidden;
    overflow-y: hidden;
    font-family: 楷体;
    font-size: 16px;
    color: #2a2828;
}

html, body, form, div, ul, li {
    margin: 0px;
    padding: 0px;
    display: inline;
}

ul li {
    list-style: none;
}

.div_body {
    display: block;
    position: absolute;
    float: left;
    left: 3px;
    right: 3px;
    top: 3px;
    bottom: 3px;
    background-color: #ffffff;
    border-radius: 4px; /*圆角*/
}

.div_body_left {
    background-color: rgb(38, 35, 35);
    display: block;
    flex-flow: column nowrap;
    position: absolute;
    float: left;
    left: 5px;
    top: 5px;
    bottom: 5px;
    width: 232px;
    padding: 2px;
    color: #eaeaea;
    border-radius: 4px; /*圆角*/
    z-index: 0;
}

.div_body_left ul, li {
    display: block;
    width: 100%;
}

.div_body_left li {
    padding-left: 10px;
    padding-top: 5px;
    padding-bottom: 5px;
}

.div_body_left .title {
    border-radius: 4px; /*圆角*/
    border: #2a2828 1px groove;
    background-color: #3b3b3b;
    padding-top: 10px;
    padding-bottom: 10px;
}

.div_body_left .title li {
    cursor: pointer;
}

.div_body_left .title li:hover {
    background-color: #309d98;
}

.div_left_user {
    display: block;
}

.div_left_title {
    display: block;
    flex: 1;
    right: 0px;
    left: 0px;
    bottom: 0px;
    overflow-y: hidden;
    overflow-x: hidden;
}

.div_left_title:hover {
    overflow-y: auto;
    overflow-x: hidden;
}

.hover {
    background-color: #309d98;
}

.div_body_right {
    display: inline;
    position: absolute;
    float: right;
    left: 230px;
    right: 0px;
    top: 0px;
    bottom: 0px;
    background-color: #d9d8d8;
    z-index: 1;
}
